.main .sort {
  background-color: #eee;
}
.main .sort li {
  height: 30px;
  line-height: 30px;
  width: 25%;
  float: left;
  text-align: center;
  font-size: 12px;
  color: #666;
}
.main .sort li.active {
  color: orange;
}
.main .product .animate {
  width: 50px;
  height: 50px;
  border: 3px solid #069;
  position: absolute;
  left: 50%;
  margin-top: 150px;
  margin-left: -25px;
  animation: zhuan 1s infinite;
}
@keyframes zhuan {
  form {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}
